Certara Inc

Our directors and officers may adopt written plans, known as Rule 10b5-1 plans, in which they will contract with a broker to buy or sell our common stock on a periodic basis. Under a Rule 10b5-1 plan, a broker executes trades pursuant to parameters established by the director or officer when entering into the plan, without further direction from them. These Rule 10b5-1 plans are intended to satisfy the affirmative defense of Rule10b5-1(c) under the Exchange Act.

On May 9, 2024, Patrick Smith, our President, Certara Drug Develop Solutions, adopted a Rule 10b5-1 trading plan. The plan provides for the potential sale, on the dates and prices set forth in the plan, of up to 33,777 shares of our common stock from June 28, 2024 through December 13, 2024.

In addition, on May 9, 2024, Leif Pedersen, our President, Chief Commercial Officer, adopted a Rule 10b5-1 trading plan. The plan provides for the potential sale, on the dates and prices set forth in the plan, of up to 51,224 shares of our common stock from September 9, 2024 through September 30, 2024.